Jun 19, 2020 As explained here, OS X 10.11 'El Capitan' fails to install because it is too old (the technical reason being that the signing certificate is no longer valid). But you can trick the OS X installer into thinking that it is 2017 and it will happily run without any errors. Install OS X 10.11 El Capitan on Hackintosh (Vanilla) Nov 7, 2015. Warning: Please follow these instructions at your own risk. I am not responsible for any damage or information loss that could result from following this guide.
Macbook Pro 13' 2015 with OS X Yosemite on board. I've been trying to install OS X El Capitan, but always get the following message: 'This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading.' By the way this is not a date time issue, date is correct on my computer. Jul 27, 2021 Os X El Capitan Not Installing OS X Mountain Lion (version 10.8) is the ninth major release of macOS, Apple Inc.' S desktop and server operating system for Macintosh computers. OS X Mountain Lion was released on July 25, 2012 for purchase and download through Apple's Mac App Store, as part of a switch to releasing OS X versions online and every.
Jul 05, 2021 • Filed to: Solve Mac Problems • Proven solutions
Macbook Pro 13' 2015 with OS X Yosemite on board. I've been trying to install OS X El Capitan, but always get the following message: 'This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading.' By the way this is not a date time issue, date is correct on my computer.
Mac users get new software updates and versions more frequently than the other operating systems. That's both the blessing and curse for the Mac users. The latest software makes your Mac device compatible with the new technological developments. Still, it also makes the existing OS obsolete. That's why most Mac users with old devices try to update their Mac to OS X El Capitan. However, you can't update your Mac to El Capitan 10.11 if your Mac runs on software later than Mac OS X 10.6 Snow Leopard.
Is OS X El Capitan Still Available for Your Mac?
OS X El Capitan (10.11) was launched on 25 September 2015, and it is an improved version of OS X Yosemite (10.10). Improved window management, quick and responsive interface, spotlight search, and enhanced graphics were the prerequisites of El Capitan OS. However, if you are planning to update your Mac to OS X El Capitan, your device must fulfill the following requirements.
Space Requirements
You can't install OS X El Capitan unless your Mac has a free space of 8.8 GB. However, that's the space you need to install El Capitan on your Mac. You might have to free more space to run your Mac more smoothly because low space slows down system performance.
Hardware Compatibility
Most of the Mac models can install and run OS X El Capitan, but in some devices, you can't use full features of this OS due to hardware limitations. For instance, you can't use AirDrop on your Mac if you don't have a WiFi network compatible with PAN. The followings are devices that are compatible with OS X El Capitan.
- MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008)
- MacBook Air introduced in late 2008 or later
- MacBook Pro introduced in mid-2007 or later
- Mac mini introduced in early 2009 or later
- iMac introduced in mid-2007 or later
- Mac Pro introduced in early 2008 or later
- Xserve models introduced in early 2009
RAM Compatibility
RAM is the temporary memory that supports the system to run apps and programs efficiently. Without enough RAM, trust me, you can't even run your native operating system smoothly. Similarly, you can't install El Capitan unless you have 2 GB RAM on your Mac.
Operating System Compatibility
Operating systems play a critical role in creating an operational environment for both the software and the hardware. If you have decided to update your Mac PC, you have to make sure that your device doesn't run the OS later than Mac OS X Snow Leopard 10. 6. 8.
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How to Update My Mac to OS X 10.11.6/10.11.4?
After you are done with checking the compatibility of your Mac device, it's time to follow some pre rituals to prepare your device for Mac OS X El Capitan 10.11. These steps are mandatory for the successful installation of El Capitan OS into your Mac, and Apple also suggests them.
Get Your Mac Ready for El Capitan Update
Unprepared installation of a new operating system can result in disappointment. Remember that you are going to get a relatively new OS for your older Mac. To increase the hardware compatibility of your Mac, you must go through a checklist for successful installation of OS X El Capitan.
Space in your Mac: This includes freeing space both on RAM and Disk drive. 2 GB RAM and 8.8 GB of disk space are mandatory because the installer would not proceed without the fulfillment of these hardware requirements.
Reinstall Os X El Capitan
Minimum battery requirement: During the OS update, a computer consumes battery quicker than the regular operations. Your Mac needs to have at least 45% battery to pass through the El Capitan installation.
Active Internet Connection: You can't proceed with any OS installation without an active internet connection. Along with the installation package, your Mac would also need some side installations throughout the update. Without the support of these plugins and drivers, you would be back to square one. So, an active connection is a must.
Update Apps: Outdated apps can halt the process of updating your Mac. As soon as the installation of Mac OS X El Capitan completes, you face a software crisis. Most of your apps would stop working, leaving you with a headache. That's why don't forget to update your apps before starting the update.
Backup Your Data: There's a high chance that you would lose your data during Mac OS X EI Capitan update because the new OS makes changes in every nook and corner of your PC. To prevent the possible data loss, make a double back up—one in the Time Machine and other in the external storage device. If there is any file missing after the El Capitan update, check how to recover files after OS X update.
Begin Update Process
Your device is ready to embrace Mac OS X El Capitan 10.11 after going through the steps mentioned earlier. Now it's time for some real action.
Step 1Visit the official Mac App Store and search for Mac OS X El Capitan. Your search result would Stake you to the El Capitan page. You can also download El Capitan without the App Store by the following links.
Step 2From the official El Capitan page, you can download your required version.
Step 3Once the download is done, the El Capitan installer will pop up on your screen.
Step 4Press the 'Continue' button and wait for the installation to begin. You can proceed with the installation by following the instructions of the installer.
Step 5The installation process does not take a long time. Once the installation is done, you can restore your data from Time Machine or external drive.
Recover Lost Files After OS X El Capitan Update
Do you remember those pre-installation steps? Those steps were taken to minimize the chances of data loss during the Mac OS X El Capitan installation. Despite these precautions, you are still at the risk of unprecedented data loss. You can lose data due to the following reasons.
Data loss due to corrupted files: If your Mac contains corrupted files, you will lose your data. During installation, the new OS tries to fix or delete corrupted files. These overwritten or deleted files would not appear after installation.
Nature of Mac OS X El Capitan's update: You will replace your older OS with a new version that is not tailor-made for your Mac. That's a significant shift in the environment of your Mac. Such kinds of major updates come with uncertainty, and you can't predict whether you are going to lose your data or not.
Hardware specifications: 2 GB RAM and 8.8 GB disk space is a standard requirement for El Capitan's update. But it takes a lot more from a Mac device to adapt to a newly enforced environment. A slight incompatibility can make you lose your data without any notice.
Lost Your Data After Mac OS X El Capitan: What's Next?
Data loss is one of the anticipated drawbacks of the installation of Mac OS X El Capitan. If you have lost your data after while updating your Mac and don't know what's next, it's time to get expert help.
Recoverit Data Recovery can be used for getting your documents, audio clips, videos, and photos back after Mac OS update. It uses high-tech codecs that are compatible with more than a thousand formats of files. Here are all the good reasons to trust Recoverit Data Recovery.
- Junk free installation for the data security of their users;
- High compatibility with Mac on different versions;
- Works effectively with every storage device: hard drive, USB drive, SD card, etc.;
- Deep scanning feature;
- Straightforward interface and quick data recovery.
Mac users can retrieve their lost data after OS X El Capitan Update by following these steps.
Step 1Download Recoverit and tap on its icon to launch it on your Mac
(If you can't find the Recoverit icon on your desktop, you can use Finder to search it.)
Step 2After running Recoverit successfully on your Mac, now choose the following options.
Step 3Select the location of the drive you want to recover files.
El Capitan Unable To Install
Step 4Use the 'Start' button to scan it. Scan retrieves all the data of your selected drive.
Step 5Using the option to 'Preview and Recover,' you can choose the files that you want to recover, and you are done.
Wrap Up
New updates always come with uncertainty for the old devices. However, you can reverse your loss of data by taking the precautionary steps. Despite these steps, you might lose a few of your files. But don't worry, an ace software like Recoverit can recover your data.
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Oct 24, 2019 I was able to install El Captain on another USB Drive (64GB) connected GIGABYTE PC. This went absolutely fine and I now have a fully indepentent USB Drive which i can simple connect to the PC and the El Captain OS boots up. Case 2: I next tried to use the same bootable USB to install El. Simply fill in the fields below and we'll call you back to confirm your booking. This link points to the 10.11.1 update and not the base 10.11. Have you been able to do a install of El Capitan from this link or are you just updating an existing El Cap install? – fsb Sep 22 '16 at 14:52.
As with prior versions of OS X, the new version 10.11 “El Capitan” is available as a free purchase from the App Store, and should then download and run to allow you to upgrade your system. If all goes well, you should see the OS X installation window that instructs you to begin the upgrade process, but there may be instances where this does not appear, or does not work when you attempt the install.
OS X El Capitan remains available for Mac computers that can't upgrade to macOS Catalina, Mojave, High Sierra or Sierra, or that need to upgrade to El Capitan first. Then double-click the file named Install OS X El Capitan. Click Continue and follow the on-screen instructions. My problem is that my Mac starts up to the 'El Capitan' installer. After restarting several times, OS X is still on screen telling me that 'no packages were eligible for install'.
First, the OS X installer should run automatically, but if not then you can try running it manually:
- Go to the Applications folder
- Open the program called “Install OS X El Capitan”
- Follow the on-screen instructions.
An alternative approach is to create a dedicated installation drive from the El Capitan installer, and use that to install the upgrade. For this, you will need a spare external drive (USB drive, or hard drive) that is at least 8GB in size, and then perform the following steps:
- Attach the drive to your Mac
- Use Disk Utility to format it to HFS+ with a GUID partition scheme, naming it INSTALLER
- Open the OS X Terminal and run the following command (copy and paste all 5 lines):
Press Enter to run the pasted command, and supply your password when prompted (it will not show when typed). Note that if you get any errors, be sure your USB drive is formatted and named “INSTALLER” so the command will properly target it. You will also need to have first downloaded the OS X El Capitan installer from the App Store, and have this present in your Applications folder.
The Terminal may take a while to complete this step, but when done you can reboot your Mac and hold the Option key to show the boot menu, and then select the El Capitan installation drive you just created to run the installer and upgrade your Mac’s internal hard drive.
/mac-os-catalina-iso-download-for-vmware/. If the procedure still fails with an error, then hopefully you have a full system backup ready, which you can restore to your Mac using the option to restore from a Time Machine backup in the OS X Recovery partition, or whatever cloning software you use. When done, attempt the above procedures to try again.
Check compatibility
You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
El Capitan Not Eligible For Install Data
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminium, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
To find your Mac model, memory, storage space and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X El Capitan, the installer will let you know.
Make a back-up
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other back-up methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install OS X, so make sure that you have a reliable Internet connection. If you’re using a Mac notebook computer, plug it into AC power.
El Capitan Failed To Install
Download OS X El Capitan
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
El Capitan Install Loop
If you still need OS X El Capitan, use this link: Download OS X El Capitan. A file named InstallMacOSX.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg.
Follow the on-screen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install OS X El Capitan.
Click Continue and follow the on-screen instructions. You may find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Install El Capitan App
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac may restart, show a progress bar or show a blank screen several times as it installs both OS X and related updates to your Mac firmware.
Learn more
Mac Os El Capitan Installer
- OS X El Capitan won't install on top of a later version of macOS, but you can erase your disc first or install on another disc.
- You can use macOS Recovery to reinstall macOS.